Rotary churn



H. H. GROVER.

. Churn. I

No. 10,245. Patented Nov. 15. 1853.

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UNITED STATES PATENT OFFICE.

H. H. GROVER, OF NORTH COHOCTON, NEW YORK.

ROTARY CHURN.

Specification of Letters Patent No. 10,245, dated November 15, 1853.

To all whom it may concern:

Be it known that I, I-IosEA H. GRovER, of North Cohocton, in the county vof Steuben and State of New York, have invented anew and useful Improvement in the Process of Churning Milk or Cream to Produce But ter; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in which Figure 1 is a perspective view. Fig. 2 is a front View of the interior machinery belonging to the mode represented by the perspective view. Fig. 3 is a front View of the interior machinery being a different mode of applying the same principle.

a, represents a crank and shaft with a transverse piece 6 near the bottom. This constitutes the prime mover or dash standing in a socket or step appended to the bottom and passing through the slats c and the cross piece (Z at the top. The ends of these slats are fitted to grooves in the sides of the tub.

0 0 represent ieces of wire passed through the slats to hold them to their position the cross piece, (Z, resting upon the upper ends of the wires and being itself made firm to the tub by the staples an which pass through the tub into it, and are movable for the purpose of taking the interior machinery from the tub. These slats are designed to be placed in singly and then the wires passed through them so that the slats may be used in any required number to suit the quantity and quality (that is the thickness) of the milk or cream to be churned. Thus situated the slats constitute a reactor.

The very flaring tub represented by the perspective view is designed to churn small quantities and to be constructed of tin. To churn larger quantities I construct the tub of wood and enlarge it by making the diam eter of the bottom greater in proportion to that of the top and the height greater in proportion to the diameter, as represented by Fig. 3. In consequence of this making the flares less it becomes necessary to increase the motion of the dash for which purpose I place a pinion or small horizontal cog-wheel on the top of the dash shaft instead of the crank and place a larger cogwheel fitted in frame work so as to mesh or gear into the less. In this case of course the crank turns vertically whereas in the other horizontally. Thus situated the crank being revolved by the hand, produces centrifugal motion in the milk and thereby causes it to rise up the flaring surface of the tub until it meets the reactor by which it is beat back upon the dash and thence a gain thrown upon the reactor and so on until the butter is produced.

I do not claim a churn-tub in the form of an inverted cone or conic frustum with revolving dasher either with or without breakers, as such churns with breakers and dashers extending from the bottom to the top of the tub, or with dashers without breakers have been used before, but

What I do claim is A churn consisting of such conical tub furnished with a vertical revolving dasher at its bottom combined with breakers at the top in the manner and for the purpose herein set forth.

HOSEA H. GROVER.

Witnesses U. W. PATGHIN, PETER HALSEY. 

